Carbon holding device



J. E. EUTH CARBON HOLDING DEVICE Filed Jan. 9, 1957 June 21, 1938.

2 Sheets-Sheet 1 June 2l, 1938. J. E. EUTH CARBON HOLDING DEVICE 2Sheets-Sheet 2 Filed Jan. 9, 1937 Patented June 21, 1938 a I UNITEDSTATES PATENT IOFFIQE CARBON HOLDING DEVICE John E. Euth, Chicago, 111.,assignor to United Autographic Register 00., a corporation of IllinoisApplication January 9, 1937, Serial No. 119,852

10 Claims. (Cl. 282-29) This invention relates to a carbon holderforsandpaper of a comparatively fine grade, 2/0 use in a typewriterprovidedwith a cylindrical grade being satisfactory. As shown in Figs. 2 platen,and more particularly to an improved an and 5, the front marginal edgeof the paper may choring tail for automatically holding transfer have aV notch, as indicated at Ill, to lessen the 5 slipsor carbori slipsduring a stripping operation chance of the edge catching on lines ofweaken- 5 in which the carbons are interleaved with a sucing usuallyprovided between sets of forms ll ceeding set of forms. i oncontinuous-form stationery [2.

The primary object of the invention is to pro- The carbon transferstrips B may be ordinary vide an improved carbon holding device havingcarbon paper of substantially the same width as means for automaticallyengaging the platen continuous stationery strips 12. The slips, pref- 10frictionally to hold the carbons while the staerably are arranged in ppd e ation, as intionery is free to advance, dicated in Figs. 3-5,inclusive, and their rear A further object of the invention is toprovide edge portions folded around and Permanently an improved carbonholding device in which the secured to the tail A, by m a s of tansverse 5 carbons and anchoring tail are of substantially gummed p p rstrips B, the ends of the latter the same width as the stationery. beingsecured to the tail A. Preferably, the end A further object of theinvention is to provide p ti ns of t st p are v d with a carbon holdingtail having stationery guides mm tabs i3 (s o It may he noted means atboth its front and rear edge portions. at the fastehihgs held the CarbonS p B 2 Another object of the invention is to provide in a manner apermits the Stationery Strips rear guide-means for the stationery whichmay ii to be threaded between the same and the be detached from theanchoring tail after the S ps Se ve to hold the carbons in lateralcarbons are worn out. alignment with the stationery.

The invention is illustrated in a preferred em- The preferred aligningans C, for the rear bodiment in the accompanying drawings in of theanchoring tail, is shown in Figs. 1-3 and 25 comprises a flat cross-barl4 and a companion Fig. 1 is a side elevational view, partly insecparallel eressebal l5 Which m y b of double tion and somewhatdiagrammatic, showing how thickness Provide additional rigidity- T thestationery and interleaved carbonsare fed ends O the Cress-bars arejoined y i r ly between a platen roll and presser rolls which are formedehd bars Which preferably (1 5- standard equipment on most machines;Fig. 2, posed at right angles o e p e of t e bars a broken plan viewshowing a preferred form of M 15, 80 as to provide lateral aligning thecarbon holding device as used in connection sllrface- The device issecured to the Feel of the with continuous stationery strips; Fig. 3, afra a A by doubling back the rear 'g r mentary plan view similar to Fig.2 but taken H over the cross'bar M and i h 5 from the opposite side;Fig. 4, an enlarged fragoverlap by means of U'Shaped sprmg chps Cmentary perspective view showing how the car.- Z i m g afteg a Sgt ofcarbqns bon slips are fastened to the anchoring tail; Fig. fi econte eymay 6 dl-sca-rded t e anchoring tall, but the rear ahgmng device 5, abroken sectional view, taken as indicated at may be Salvage-d andapplied to a new assembly 40 5 3f gi g-g fg i gf g l fg g ig' Theholding device is easily installed by 1 rear 1 eans e threading all ofthe strips through a slot l8 anch rin ta l; a a m n a y p a s providedbetween the bars l4 and I5 and threadme an th m difi d m o a id ns; ingthem into interleaved relation with the car- F a fragmentary p n VShowing a the bon slips. This operation is facilitated by the modifiedform of rear gu d -mea s; a d Fi stepped arrangement of the rear edgesof the a sectional view, taken as indicated at line 9 of carbons. Theassembly is then introd d Fig. 8. tween a platen roll I9, which usuallyhas a soft In the preferred embodiment illustrated in rubber surface 20,and presser rolls 2| so that Figs. 1-5, A designates a tail-like webwhich the advanced loaded set of forms may be typed serves as an anc i dvi a b n slips in the usual manner. At the completion of the which aresecured to the tail A, by means of writing operation, the forms willreach the posifastening means B; and C, rear guide-means tion shown inFig. 1 and the presser rolls 2| may which may be detachably secured tothe rear of be thrown out of engagement with the stationthe anchoringtail by means of metal clips C. ery. The operator then grasps the endsof the The anchoring tail may be made of ordinary strips 12 and drawsthem upwardly at an angle 55 that will press a suflicient arc of thefrictional tail against the platen to bind it against forward movementand permit the interleaved stationery to slip therearound. When thecompleted set of forms are clear of the carbons, they may be detachedand the assembly is ready to be backed into writing position by means ofthe platen roll and presser mechanism, as will be readily understood.

In the modification shown in Fig. 6, the rear edge of the anchoringstrip 22 is doubled over to form a pleat 23 which may be held by staples24. A metal bail 25 may then have its front ends introduced into theends of the pleat 23 by bending the central portion of the pleat 23.

In the modification shown in Fig. 7, a metal insert 26 is mounted in awindow 21 provided in the rear of an anchoring tail 28. The metal framethus formed serves as an aligning slot for the stationery.

In the modification shown in Figs. 8 and 9, a flat metal bar 29 has itsend portions turned upwardly and inwardly over the anchoring tall 30, asindicated at 3|, and is gripped in position by means of metal clips 32.

It may be noted that in the forms shown in Figs. 3, 7 and 8, the metalaligning means serves to hold the rear edge portion of the anchoringtail in lateral extended position. In all forms except Fig. '7,practically the entire holding device is disposed within the lateralboundaries of the stationery strips.

While sandpaper is preferred for use as an anchoring tail, other stiffpapers may be used provided with a suitable frictional face. Forexample, it has been found that a thin sheet of rubber may be pasted tothe top face of the tail and it will operate satisfactorily.

The foregoing detailed description has been given for clearness ofunderstanding only, and no unnecessary limitations should be understoodtherefrom, but the appended claims should be construed as broadly aspermissible, in view of the prior art.

I claim:

1. A manifolding device, for use in a typewriter having a cylindricalplaten around which continuous stationery strips may be led, comprising:a flexible tail-like web to which is attached a plurality of carbonslips interleaved with said stationery, said web having a face offrictional material adapted to engage said platen so as to restrainadvance of the carbons while the stationery is stripped therethrough.

2. A manifolding device, for use in a typewriter having a cylindricalplaten roll, comprising: a flexible tail member having a frictional faceadapted to engage said platen roll and automatically restraincircumferential movement with respect to the roll while stationery isdrawn therearound; a series of carbon slips connected to front marginalportions of said tail member; and guide-means at the rear of the tailmember adapted to engage stationery interleaved with the carbons andhold the same in lateral alignment.

3. A device as specified in claim 2, in which the guide-means comprisesa metal cross-bar secured to the tail member so as to hold said memberlaterally extended and form a passageway for the stationery strips.

4. A device as specified in claim 2, in which the guide-means comprisesan elongated metallic frame removably secured to the tail member so asto hold the tail laterally extended and form a guide slot for thestationery.

5. A device as specified in claim 2, in which the guide-means comprisesan elongated metallic frame removably secured to the tail member so asto hold the tail laterally extended and form a guide slot for thestationery, said frame having a pair of flat parallel cross-barsconnected at their ends by fiat end-bars disposed substantiallyperpendicular to the plane of the cross-bars.

6. A device as specified in claim 2, in which the rear end of the tailmember is doubled back on itself to form a pleat, and the guide meanscomprises a bail having ends adapted to be inserted in opposite ends ofsaid pleat.

7. In a typewriter having a cylindrical platen and presser rolls forfeeding a plurality of long strips of stationery through writingposition, a carbon holding device comprising: a tail member, of the samewidth as the stationery strips, having a frictional face presentedtowards the platen and adapted to prevent circumferential movement withrespect thereto when said presser rolls are released; guide-means at therear of said tail for holding the stationery strips in lateral alignmentand in juxtaposition to said tail; carbon slips interleaved with thestrips; and fastenings for said carbon slips for securing their rear endportions to the front lateral edge portions of the tail, said fasteningsforming lateral guides for the stationery at the front of said tail.

8. A device as specified in claim 7, in which the tail member is made ofsandpaper.

9. A device as specified in claim '7, in which the tail member is madeof sandpaper and has at its front marginal edge portion a V-shaped notchto avoid catching on lines of weakening provided in the stationerystrips.

10. A device as specified in claim 7, in which the fastenings for thecarbons comprise transverse strips of gummed tape, around which thecarbons are folded, said carbons being arranged in stepped relation.

JOHN E. EUTI-I.

